Captain of the Beagle, which took Charles Darwin on his famous voyage to South America and around the world. FitzRoy's chief mission on the Beagle was to chart the coast of South America. He also established the first weather warning system while on his journeys, with the help of the telegraph, and later rose to the rank of Admiral in the British Navy. He was known as a young man for his moody temperament, and in his older age for questionable sanity; FitzRoy's life ended in suicide.